ASTROSAT CZTI

Data Quality Report

Orbit 36965

Creation date: 2024-06-27T21:33:40.910610
Switch to: Orbit-wise | Merged OBSID-wise
web.py, SVN revision $Rev$

Source files: Data quality report (detailed, human readable) | Data quality report (concise, machine readable)

Observation information


Basic statistics of files

Param Original file Final file
FilenamemodeM0/AS1C07_001T10_9000005252_36965cztM0_level2.evt modeM0/AS1C07_001T10_9000005252_36965cztM0_level2_quad_clean.evt
Size (bytes)472,167,360102,657,600
Size450.3 MB 97.9 MB
Events in quadrant A2,834,593697,945
Events in quadrant B4,721,656665,434
Events in quadrant C3,151,659682,286
Events in quadrant D3,204,930664,814

Level1 data integrity


Mode M0
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0120343
B0179292
C0128732
D0133282

Mode SS
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A01160
B01160
C01160
D01160

Mode M9
QuadrantBADHDUFLAGTotal packetsDiscarded packets
A0170
B0170
C0170
D0180

Data saturation


QuadrantTotal secondsSaturated secondsSaturation percentage
A569880.140400%
B56985289.266409%
C5698490.859951%
D5698751.316251%

Noise dominated fraction

Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.

Quadrant # 1 sec bins Bins with >0 counts Bins with >2000 counts High rate bins dominated by noise Noise dominated (total time) Noise dominated (detector-on time) Marked lightcurve
A 7311 5699 1 1 0.01% 0.02%
B 7311 5699 376 376 5.14% 6.60%
C 7311 5699 47 47 0.64% 0.82%
D 7311 5699 57 57 0.78% 1.00%

Top noisy pixels

Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1

Pixel properties Quadrant properties
Quadrant DetID PixID Counts Sigma Mean Median Sigma
A 10 83 258185 1980.98 637 623 130.0
A 12 189 56012 426.01 637 623 130.0
A 13 6 18154 134.84 637 623 130.0
B 5 184 1765773 15310.92 611 595 115.3
B 0 229 78555 676.21 611 595 115.3
B 4 81 76978 662.54 611 595 115.3
C 15 214 250288 1743.23 616 620 143.2
C 0 207 106786 741.27 616 620 143.2
C 14 254 104486 725.21 616 620 143.2
D 1 52 245966 1615.63 620 603 151.9
D 12 233 80193 524.07 620 603 151.9
D 2 249 69599 454.31 620 603 151.9

Detector plane histogram (DPH)

Histogram calculated using DETX and DETY for each event in the final _common_clean file

Quadrant A Quadrant B
Quadrant D Quadrant C

Count rate plots and images

Plot type Count rate plots Images
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data.
Quadrant-wise count rates
Data is divided into 100 sec bins
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins

Housekeeping plots

Parameter Plot
CZT HV Monitor
D_VDD
Temperature 1
Veto HV Monitor
Veto LLD
Alpha Counter
_CPM_Rate
CZT Counter
+2.5 Volts monitor
+5 Volts monitor
_ROLL_ROT
_Roll_DEC
_Roll_RA
Veto Counter